Hydratable siloxane comprising porous polymers

An hydratable porous polymer comprising a polymerized polyorganosiloxane macromonomer of formula Iwherein c is in the range of from 0 to 5, preferably in the range of from 0 to 3;M may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 8000 and where...

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Bibliographische Detailangaben
Hauptverfasser:	MEIJS GORDON FRANCIS, CHAOUK HASSAN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON CONTACT LENSES GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	An hydratable porous polymer comprising a polymerized polyorganosiloxane macromonomer of formula Iwherein c is in the range of from 0 to 5, preferably in the range of from 0 to 3;M may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 8000 and wherein at least one M comprises a residue from a difunctional polymer or copolymer comprising siloxane repeat units of formula IIwhere R and R may be the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, alkenyl, alkynyl, aryl, haloalkyl, haloalkenyl, haloalkynyl, haloaryl, heterocyclyl, and haloheterocyclyl;L is a difunctional group;and Q may be the same or different and is a polymerizable group.